Home / 180,679.03-249,339.05-100,107.82

Finding the Fourth Proportional to 180,679.03, 249,339.05 and 100,107.82

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Solution

The fourth proportional to 180,679.03, 249,339.05 and 100,107.82 is: 138,149.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,679.03 : 249,339.05 = 100,107.82 : x
  2. Step 2: Convert to fraction form
    180,679.03/249,339.05 = 100,107.82/x
  3. Step 3: Cross multiply
    180,679.03x = 249,339.05 × 100,107.82
  4. Step 4: Simplify right side
    180,679.03x = 24,960,788,736.37
  5. Step 5: Solve for x
    x = 24,960,788,736.37/180,679.03
  6. Step 6: Final answer
    x = 138,149.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.